Instructions
Stop the horse from lying down in the first place. This is especially important if the horse tries to lie down while you're riding it. Dig in your heel and jerk up on one side of the reins. Don't do it hard enough to hurt, but hard enough to let the horse know that you're aware of what it's trying to do, and that you won't let it. A horse will lower its head and slow just before lying down, so you can watch for the signs.
Urge the horse up by tugging on the bridle or gently pulling on its head. Horses are responsive, and if you make it clear that it has to get up, it will, assuming that it's trained well. Offering a treat and staying just out of reach is another way to tempt the horse out of a prone position.
Make a loud noise to annoy the horse. A honking horn or loud, ringing bell will be enough to bother a horse into getting up and finding somewhere more peaceful. You don't want to spook the horse because it might bolt, but you want the noise to command its attention and upset it enough to get it to stand up.
How Can I Help a Horse Get Up From Lying Down?
Horses, as a rule, don't lie down very often. When they're young, they lie down and sleep by their mothers, but a horse's anatomy isn't made for lying on the ground. That's why horses tend to sleep standing up. However, if you have a horse that's lying down, you can urge it up fairly easily, unless it's hurt or ill. If that's the case, you need to call a vet to have your horse examined.